Variable nozzle.



A. B. BROWN.

VARIABLE NOZZLE.

APPLICATION FILED JUNE 13. 1914.

1 1 5 1 656, Patented Aug. 31, 1915.

unrraio srarns PATENT carton ALVAN B. BROWN, OF GRAND RAPIDS, MICHIGAN,ASSIGNOR OF ONE-HALF T0 CHARLES H. FIELD, OF GRAND RAPIDS, MICHIGAN.

VARIABLE NOZZLE.

Specification of Letters Patent.

Application filed June 13, 1914. Serial No. 844,946.

To all whom it may concern:

Be it known that I, ALVAN B. BROWN, a citizen of the United States,residing at Grand Rapids, in the county of Kent and State of Michigan,have invented certain new and useful Improvements in Variable Nozzles,of which the following is a specification.

This invention relates to improvements in variable nozzles.

The objects of this invention are: First, to provide an improvedvariable nozzle which is adapted to deliver either a single long jet orstream or a fine whirling spray, and in which the character of the spraydelivered can be varied between these two extremes. Second, to providean improved form of spray rod which can be cheaply and economicallyproduced, and which will not be sensibly affected by the sprayingmixture.

Further objects, and objects relating to economies and details ofstructure and operation will definitely appear from the detaileddescription to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure constituting a preferred embodiment of my invention isillustrated in the accompanying drawing forming a part of thisspecification, in which:

Figure I is a view in side elevation of my improved variable nozzle andspray rod, a part thereof being broken away. Fig. II is an enlargedlongitudinal sectional view through my improved variable nozzle. Fig.III is an enlarged detail sectional view on the line 3-3 of Fig. II,showing in detail the inclined slots in the disk-like member. Fig. IV isa transverse sectional view on the line li of Fig. I, showing in detailthe construction of the spray rod.

In the drawing, similar reference characters refer to similar partsthroughout the several views, and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

Considering the numbered parts of the drawing, 1 is the nozzle bodywhich is hollowed out to form a nozzle chamber therein and which isprovided with an inlet passage 2 into which the upper end of thedelivery pipe 3 is threaded. The upper end of the body 1 is providedwith an inner annular shoulder 4 upon which the ring 5 rests, the top ofsaid ring coming flush with the top of the nozzle body. The rubbergasket 6 rests upon the top of the nozzle body and upon the top of thering 5, and a flat disk 7 is supported on top of this gasket, said diskbeing provided with a central aperture 8 through which the stream isdelivered. The tip 9 is threaded upon the upper portion of the nozzlebody and is provided with an inwardly pro ecting annular flange 10engag-.

ing the top of the disk 7 to hold it seated upon the gasket 6.-

T he lower part of the nozzle body is provided with stuffing box 11 inwhich the actuating rod 12 is reciprocally mounted. Secured to the upperend of the actuating rod 12 is the disk-like member 13 disposed in thechamberof the nozzle body, said disklike member being provided with apair of inclined slots 14.

The delivery pipe 3 to the upper end of which the nozzle is, securedprojects from,

the upper end of the spray rod which is formed of two half round stripsof wood 15 in which half round channels 16 are provided. One of thesestrips of wood is disposed with the half round channel 16 uppermost andthe face of the strip and the chan nel is covered with cement. Adelivery pipe 3 is laid in said channel 16 and the other strip of wood15, the face of which has also been covered with cement, is laid inplace over the delivery pipe, the two pieces are clamped together andheld clamped together until the cement has dried and set so that we havea spray rod, appearing in cross section as shown in Fig. IV, in whichthe delivery pipe 3' is cemented to and securly clamped between the twostrips of wood 15. F errules 17 are provided at the upper and lowerend'of said spray rod to finish the same and protect the ends of thewood from the spraying mixture. Ferrules are also provided throughoutthe length of the spray rod as needed to strengthen same. The cutoffvalve 18 is provided in the lower end of clamped on the delivery pipe 3by means of ating rod is connected with saidactuating lever by means ofthe wire 26.

From the description of the parts given above, the operation of thestructure should be very readily understood.

The spraying liquid is delivered to the nozzle through the delivery pipe3 and the inlet pipe 2, and with the parts in position shown in fulllines in Fig. II, the spraying liquid passes into the upper part of thenozzle chamber around the edges of the disk- -like member 12, as well asthrough the diagonal ports 14, so that the whirling action iscomparatively small as compared with the volume of liquid passingthrough the nozzle and the liquid is forced out through the smallaperture 8 in a narrow jet or stream which. carries to a considerabledistance and forms what is known as the long distance spray. This isused for reaching the tops of tall trees. However, for a good many kindsof work it is not necessary to have a stream that will carry so far andit is very desirable to provide a fine whirling spray which scattersconsiderably and for this purpose the actuating rod 12 is moved upwardcarrying the disk-like member 13 into'the position shown in dotted linesin Fig. II. In this position the spraying liquid passes upward throughthe diagonal slots 14 which give a whirling motionto the liquid so thatit passes out through the aperture 8 in the form of a whirling spray andmakes a very effective spray for fruit trees. As the disk-like member 13is withdrawn gradually from the position shown in dotted lines in Fig;II to the lower position, shown in full lines in said figure, thecharacter of the spray will be changed gradually from that of a whirlingspray to the single jet or stream. Thus I am able to vary the characterof the jet delivered from the nozzle materially so as to adapt it toreach the tops of very tall trees or for ordinary spraying work on thelower branches where it is desired to cover a considerable area.

It will be noted that, when the member 13 is in its uppermost positionthe pressure of the liquid will tend to hold it in that position. Whenthe disk-like member is in position against the lower face ofthe ring 5the pressure of the liquid below it in the same.

nozzle chamber will press the disk against the face of the ring 5. Thislessens the strain on the spring 22 which normally presses the actuatingrod 12 upward tending to hold the disk-like member 13 in the uppermostposition. The actuating rod 12 is actuated by means of the actuatinglever 24 connected to the wire 26 and when the handle of said actuatinglever is pulled toward the spray rod the actuating rod is pulleddownwardly to withdraw the disklike member 13 to its lowermost position.The spraying liquid is cut off by means of the valve 18. i l

The spray rod is formed as I have indicated above and the delivery pipe3 cannot turn in said rod due to the fact that it is cemented securelythereto, the parts of the rod being securely cemented together, and theend thereof beingcovered with ferrules so that the spraying liquidcannot get at the rod or at the cement to loosen the same. This makespractically an integral structure which is light enough for spraying useand which at the same time has rigidity enough so that it will not bendunder the weight of the nozzle so that it makes a very satisfactory andeconomical spray rod.

I have shown the disk-like member 13 provided with a pair ofinclinedslots 14. It will be apparent that the number of slots provided is notessential and that practically the same results could be securedwith-one inclined slot or by the use of more than one, the number whichmight be used depending largely upon the size of the disklike member. Itwill also be apparent that it is not necessary to have inclined slotsextending to the outer edge of the disk but that the same results can besecured by providing any sort of inclined ports passing through saiddisk-like member. 1

I am aware that the particular form of my invention that I have hereshown may be varied considerably without departing from the spirit of myinvention, and, therefore, I do not wish to be restricted to the I havefound, however, that this particular form is to be preferred and,therefore, I desire to claim the same specifically, as well as broadly,as indicated by my appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a spray nozzle, the combination of a nozzle body having a nozzlechamber ring seated on said shoulder, a gasket seated on said ring, anozzle tip having a central discharge aperture therein threaded on-theupper end of said nozzle Rudy, an actuating rod, a disk-like membercarried by the upper end of said actuating rod within said nozzlechamber, said disk-like member being provided with a plurality ofinclined ports and having its upper surface adapted to contact with thelower surface of said ring, and means for reciprocating said actuatingrod, all coacting substantially as described for the purpose specified.

2. In a spray nozzle, the combination of a nozzle body having a nozzlechamber therein, and an inlet'communicating with said nozzle chamber, adelivery pipe connected to said inlet, said nozzle body being providedwith an inner annular shoulder, a ring seated on said shoulder, a nozzletip having a central discharge aperture therein threaded on the upperend of said nozzle body, a disk-like member provided with an inclinedport and having its upper surface adapted to contact with the lowersurface of said ring, and means for moving said disk into and out ofcontact with said ring to vary the character of the spray discharged.

In witness whereof, I have hereunto set my hand and seal in the presenceof two witnesses.

ALVAN B. BROWN. [n s] Witnesses:

CHARLES H. FIELD, C. B. DES JARDINs.

